bike tires

The original tires are just fine for dirt trail use. No need to buy anything different.

You can hose the bike down with a garden hose and, if necessary, use some car wash soap and a soft brush to gently scrub the dirt off. Depending how dirty it is, you can use a stiffer brush to clean the rear gears. Rinse it well and leave it out in the sun/wind so it dries thoroughly and quickly. You can use a rag to hold the chain lightly while rotating the crank backwards. This is the easiest way to wipe off the chain. Then get some chain lube like this (http://brandscycle.com/product/finish-line-dry-lubricant-with-teflon-4-ounce-bottle-44575-1.htm?gclid=COiggZ22or8CFUwV7AodaikAWA) and LIGHTLY relube the chain.

If you are going to get the chain wet a lot on rides DON'T use the Finish Line Dry product, any dry product is made for dry conditions and water simply washes it right off leaving the chain without any lube and will start the rust process. The two best that I've found is Chain L and ProGold Xtreme, google both, there are other good wet lubes so the subject of lubes can be very opinionated, but the two that I mentioned have worked the best of the lubes I've used previously. Dry lube the ProGold Xtreme (yup works in both conditions) and the Rock N Roll Gold (more for dry conditions) both work better than the Finish Line product. I use the ProGold Xtreme and Chain L almost exclusively, but I really like the Rock N Roll Gold on my new road bike.

Tire wise you have to decide how rough of trail conditions will you'll be riding, basically if you'll be using the bike for roads then get the narrowest smoothest tire you can put on that rim, if hard pack get a tire with small block all over or small block center tread and larger lugs on the sides, and for rougher conditions lugs all over...that's just the basics! But a great smooth dedicated road tire for your bike is the Michelin Wild Run R which can be found on Amazon in size 26 x 1.7 which will fit your rims. A decent small block all over tire is the Kenda K1047 Small Block 8 SCT; and for more rougher conditions the Kenda Kinetics with larger blocks (lugs) is a great tire. Now all the tires I mentioned are on the lower side of the cost spectrum, you can get better tires but you'll pay a lot more.

Thanks for help guys I need it